8406980686 has 16 divisors (see below), whose sum is σ = 13582750608. Its totient is φ = 3879504000.

The previous prime is 8406980633. The next prime is 8406980689. The reversal of 8406980686 is 6860896048.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8406980689) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 157761 + ... + 204211.

It is an arithmetic number, because the mean of its divisors is an integer number (848921913).

Almost surely, 2^8406980686 is an apocalyptic number.

8406980686 is a deficient number, since it is larger than the sum of its proper divisors (5175769922).

8406980686 is a wasteful number, since it uses less digits than its factorization.

8406980686 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53427.

The product of its (nonzero) digits is 3981312, while the sum is 55.

The square root of 8406980686 is about 91689.5887546672. The cubic root of 8406980686 is about 2033.3556643670.

The spelling of 8406980686 in words is "eight billion, four hundred six million, nine hundred eighty thousand, six hundred eighty-six".